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Boolean 4/4 | Data Types and Variables
Introduction to JavaScript (staging)
course content

Course Content

Introduction to JavaScript (staging)

Introduction to JavaScript (staging)

1. Introduction
2. JavaScript syntax
3. Data Types and Variables

book
Boolean 4/4

Simple Applications of Boolean() Function

We can pass expressions to the Boolean function to check whether it’s true or false. For example, the following code checks if the number passed to the Boolean() function is completely divisible by 3. It returns true if the value is completely divisible by 3 and false otherwise.

1
console.log(Boolean(21%3 == 0));
copy

But without Boolean() we also get the same result. But Boolean function gives more clarity that Boolean value must return.

1
console.log(21%3 == 0);
copy

Summary

  • Boolean values are either true or false.
  • The first letter of Boolean values (true and false) should be written in uppercase.
  • The Boolean() method is used to evaluate an expression and returns true or false based on results.

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Section 3. Chapter 18
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book
Boolean 4/4

Simple Applications of Boolean() Function

We can pass expressions to the Boolean function to check whether it’s true or false. For example, the following code checks if the number passed to the Boolean() function is completely divisible by 3. It returns true if the value is completely divisible by 3 and false otherwise.

1
console.log(Boolean(21%3 == 0));
copy

But without Boolean() we also get the same result. But Boolean function gives more clarity that Boolean value must return.

1
console.log(21%3 == 0);
copy

Summary

  • Boolean values are either true or false.
  • The first letter of Boolean values (true and false) should be written in uppercase.
  • The Boolean() method is used to evaluate an expression and returns true or false based on results.

Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
Everything was clear?

How can we improve it?

Thanks for your feedback!

Section 3. Chapter 18
Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
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